Are my components sufficient for Minecraft and Minecraft Streaming?

I have the Intel Core i5 and the Nvidia GeForce GTW 660, would that be enough to play Minecraft and stream at the same time?

Rather not. Streaming games and playing is likely to be difficult, or only with poor quality.

I agree.

If you have good internet, it would also be enough for cloudgaming. Your PC would be enough for playing Minecraft.